After watching this video of athletes running, jumping, and just about flying through the Miami Marine Stadium, the Modernist masterwork of architecture and contemporary masterpiece of graffiti on Key Biscayne, I realized the London 2012 Olympics are missing a game: parkour.

From design to setting, the Miami Marine Stadium is perhaps the most striking structure in the city, and, until recently, it was one of the most endangered historic places in the nation. Thanks to vigorous, ongoing activism by preservationists, including Hilario Candela (below), the architect who designed it as a 27-year-old Cuban immigrant, the stadium has a good chance of reopening to the public as a one-of-a-kind entertainment venue. To read more about the building and its architect, read my story in The Atlantic Cities, which features a collection of beautiful photographs by Robby Campbell.